PDF malware analysis — malicious · 793372442ac19c98

MALICIOUS

PDF

41.4 KB Created: 2021-04-30 08:31:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 7af617cd7ee497eea7a0b063a25a0e94 SHA-1: 730a7031e9d6ed97f68828d1cf424c1e03c907e7 SHA-256: 793372442ac19c98b4bdeda4e0a0dab4caf10b5a1cc9b36a80855003736665f4

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector infrastructure, specifically advertising 'free generators' and 'game hacks' for Roblox. The primary malicious URL identified is https://netcdn.xyz/app/431946152/roblox-game-free-robux-obby-game-hack, which is flagged as a known malicious redirector. The document body and heuristics indicate a lure designed to entice users to click through to potentially malicious sites, likely for credential harvesting or further malware delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.9941

Heuristics 4

PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE

PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://netcdn.xyz/app/431946152/roblox-game-free-robux-obby-game-hack In PDF document text
- https://elibrary.ikhac.ac.id/repository/roblox-survivor-cheats.pdfIn PDF document text
- https://elibrary.ikhac.ac.id/repository/de-robux-hack-pw.pdfIn PDF document text
- https://elibrary.ikhac.ac.id/repository/code-roblox-free.pdfIn PDF document text
- https://elibrary.ikhac.ac.id/repository/how-to-get-free-catalog-items-on-roblox-vortex.pdfIn PDF document text
- https://elibrary.ikhac.ac.id/repository/roblox-com-hack-robux.pdfIn PDF document text
- https://elibrary.ikhac.ac.id/repository/roblox-roblox-hack-free-robux-generator.pdfIn PDF document text
- https://elibrary.ikhac.ac.id/repository/rememe-cheat-roblox.pdfIn PDF document text
- https://elibrary.ikhac.ac.id/repository/how-to-buyt-any-item-for-free-roblox.pdfIn PDF document text
- https://elibrary.ikhac.ac.id/repository/vehicle-simulator-roblox-money-cheat.pdfIn PDF document text
- https://elibrary.ikhac.ac.id/repository/roblox-free-group-finder.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004232.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4232	26420 bytes
SHA-256: `407686f3de1f264d616d1c67709d3352ad8801db1fb57717abbefb68219f9506`
`font_01_sfnt_off00007ec8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7EC8	18756 bytes
SHA-256: `67f54cc2f148999e3510592ca88dd3f54c3f3631810c08686f936512df0af1f7`

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